Buttermilk-Blueberry Breakfast Cake - cooking recipe

Ingredients

1/2 cup unsalted butter, room temperature
2 teaspoons lemon zest (or more)
3/4 cup sugar plus 2 tablespoons sugar, divided
1 egg, room temperature
1 teaspoon vanilla
2 cups flour, divided
2 teaspoons baking powder
1 teaspoon kosher salt (or 3/4 tsp table salt)
2 cups fresh blueberries
1/2 cup buttermilk

Preparation

Preheat the oven to 350 degrees. Cream butter with lemon zest and sugar (minus 1 tablespoon) until light and fluffy.
Add the egg and vanilla and beat until combined. Meanwhile, toss the blueberries with 1/4 cup of flour, then whisk together the remaining flour, baking powder and salt.
Add the flour mixture to the butter mixture a little at a time, alternating with the buttermilk; fold in the blueberries.
Grease a 9-inch square aluminum baking pan with butter or coat with non-stick spray. Spread batter into pan. Sprinkle batter with remaining tablespoon of sugar. Bake for 35-45 minutes. Check with a toothpick, checking for doneness. Let cool at least 15 minutes before serving.